$ date
Tue 25 May 2021 12:31:56 PM CST
$ systemctl list-timers
NEXT LEFT LAST PASSED UNIT ACTIVATES
Tue 2021-05-25 16:39:00 CST 6min left Tue 2021-05-25 16:09:05 CST 23min ago phpsessionclean.timer phpsessionclean.service
Tue 2021-05-25 18:12:30 CST 1h 40min left Tue 2021-05-25 11:39:43 CST 4h 52min ago fwupd-refresh.timer fwupd-refresh.service
Wed 2021-05-26 00:00:00 CST 7h left Tue 2021-05-25 00:00:09 CST 16h ago logrotate.timer logrotate.service
Wed 2021-05-26 00:00:00 CST 7h left Tue 2021-05-25 00:00:09 CST 16h ago man-db.timer man-db.service
It's not clear whether CST refers to Cuba timezone, Cameroon timezome, or US Central timezone.
Is it possible for my Linux to spell out the full name of the timezone or use the format of UTC-x?
Use timedatectl: